Watch says you’re in the red but body feels fine? You’re not imagining it. Discover why 220 minus age fails women and how to ...

Abstract: This paper investigates the exponential synchronization of coupled Lur'e dynamical networks with multiple time-varying delays and derivative coupling. In order to synchronize the Lur'e ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Portfolio variance is a measure of the dispersion of returns of a portfolio.

Volatility is troublesome for many investors. Value changes in your stocks, your portfolio, or an index can keep you up at night -- or worse, push you to make emotional decisions you later regret.

Stock's historical variance measures its return stability over time. Higher variance indicates greater return unpredictability and risk. Calculate variance using Excel to simplify the process for ...

Introduction: Polyploid hybrid progeny have both ploidy and hybridization effect, and abound in genetic variation of traits, which is an important material for the breeding of excellent new ...

1 Finnish Education Evaluation Center (FINEEC), Helsinki, Finland 2 Turku Research Institute for Learning Analytics (TRILA), University of Turku, Turku, Finland This ...

Beta is the 2nd letter in the Greek alphabet, and the financial world uses it to refer to the sensitivity of an asset’s price compared to a specific index or benchmark. Beta is also used as a measure ...